Typewriting machine



Jan. l@ 511926. 2,5%,309

A. G. F. KUROWSKH TYPEWRITING MACHINE Filed Sept. 27, 1922 5 SheeS-.l'leelI l 259A ,gw/9%" 379g? y j?? y (7J Aor y' Jan. 19 1926. 1,570,309

A. G. F. KURowsKa TYPEWRITING MACHINE Filed Sept. 27, 1922 5 Sheets-Sheet 2 Jan. 19 1926. 1,570,309

A. G. F. KuRowsKl TYPEWRITING MACHINE Filed Sept. 27, 1922 3 Sheets-Sheet 5 bolster be present, and for holding the casing ,proper down upon the bolster, and the latter in place upon the base-piece, when 'it is elected to use the bolster.

A feature of the invention is the provision of novel and efiicient means for closing the joints at the sides of the machine between the keyboard extension and casing; and above the keyboard extension, between the front wall of the machine-frame and the Casing; such means being torsionally resilient and flexible, so that there may be maintained a pressure of the ripper 'portions thereof, rearward against the front of the machine, and of the lower portions thereof laterally against the TKeyboard extension of the machine, to close, throughout their lengths, the joints between the several parts of the machine and the casing; while permitting proper iexing thereof for insertion and removal of the machine.

A n object of the invention is the provision of a cover-opening spring-device, which may be of any desired strength or force, while requiring but little space for its movements and housing. In this connection, a feature of the invention is the use, between the spring-opening device and the cover, of means for amplifying the VVmotion of .the spring-device, so that an ample cover-o ening may be had with'small movenient o the spring-device, and so that, small movement of the spring-device being required, the same may be in the form of a relatively heavy coil-spring, conveniently housed by telescoping members.

A feature of the invention is the provision of a removable plate, adapted, when in place, to close the upper portion of the openinor in the front wall vof the casing over'the leyboard extension, and to seat, in a novel and effective manner, the cushion which forms the lower wall of the slot, along which the operating levers on the carriage move; this removab e plate, with the cushion and cushion-seat, and suitably ve uipped with sound-deadening material to c ose the joint between `the casing and the front of the machine, being securely and quickly attachable, as a whole, to the casing front wall at the upper edge thereof.

A feature of the invention is the provision of a shade on the casing, to intercept lightrays which would otherwisel be `objectionr ably reflected from the window-pane to the eyes of the operator; such shade being securely fixable to the vshell of the casing, and,

4 in the preferred form thereof, being a strip nemesis cover, are each of unitary, seamless structure, drawn into shape bv suitable dies or presses, while in heated condition.

@ther vfeatures and advantages will hereinaieter appear ln the accompanying drawings,

Figure l is a view, in front elevation, partly in cross-section, of the casing.; the keyboard extension of a type-writing machine being shown protruding through the .trout wall oit the casing; and a bolster or standard being shown between the casing proper and the base-piece to enable the lateral offsets or overhangs of the casing to clear the corners of a depression in the top of a desir when the machine and casing are supported by a platform in the depression.

Figure 2 is a view, in cross-sectional side elevation, taken on the line 2 2 of Figure 1.

Figure 3 is a top plan view of the casing, the cover being broken away to show the interior of the casing-body.

Figure 4 is a rear view of a piece forming, when in place, the upper portion of the front wall of the casing.

Figure 5 is a vlew, in longitudinal crosssection, taken on the line 5-5 of Figure 2, showing the means for attaching and locking the front piece or Figure 4 to the main body-portion of the casing.

Figure 6 is a view, in cross-sectional side elevation, showing the mounting of the casing on its base-piece when the standard for adapting the same to use on a desk having a depression is eliminated.

Fi re 7 is a view taken on the line 7 7 of Figure 1. -f

Figure 8 is a top plan view of the casing base-piece; the same being broken away at one corner to show the sound-deadening lining and supporting plate therefor.

Figure 9`is a view, in cross-sectional side elevation, through the cover balancing or opening device; the parts being in the position assumed when the cover is closed.

Figure l0 is a View, in `cross-section, on the line lib-l0 oi Figure 9.

n Figure ll is a view. in side elevation, of tnecover opening or balancing device and its connections to the casing body and cover, with the cover in open position.

Figure l2 is a detail view, taken in crosssection on the line 12--12 of Figure 1, through the sound-deadening device at the side edge of the opening in the front wall of the casing; one of the front posts of the typewriting machine, and the position of the device when the machine is in place in the casing, being shown in dotted lines.

The casing is in two principal parts, to wit, a' body-portion 10 and a cover 11; the cover being hinged at 12 at the rear thereof to the body-portion to swing from Figure 2 to Figure 11 position. Both the casing body and cover are shown as of sheet-maatrasos ythe typewriting machine 16 (indicated in dotted lines) may protrude therethrough.

For vsecuring the lining 13 to the sheeting 10 of thecasing, the latter has. staked therein, near its upper and lower edges, bosses-or bushings 17, which pass through openings in they` lining, and which are threaded to receive screws 18, which pass through retainingstraps 19 laid longitudinally of the inner face of the lining, to hold the strapsto the bushings\l7. At its lower edges the sheeting 10 has a reinforcing bead 20 formed peripherally thereon; and, from the. bead- 20, 1s turned inward to form a horizontal peripheral .flange 21. The lower edge of the lining 13 is set upon the flange 21; and the flange, in addition to serving as a reinforcement, serves as a seat for the casing proper on its base-piece. At the front of the casin -body the lining 13 terminates 'with the s eetin 10 at the sides of the opening 1'4 for' the eyboard extension. Below the keyboard extension, the sheetinglO is continued,from4 side to side of the casing, as a slightly offset strip 10a (see Figure 2). The piee 10 is lined with a sound-deadening strip 23 held thereto by a strap 24, which is secured by screws 18a to bushings 17 staked or' riveted in the sheet-metal. The lining-strip` 23, like the lining 13, is set upon the eripheral flange 21 ofthe casingbody. `T e upper edge of the lining-strip 23 is extended, as at 23, as a resilient tongue to engage and ress against a rod 26 on the machine when t e latter is in place.

As shown in Figure 1, the casing is flared laterally upward and outward on the lines 30, to provide room in the top thereof for movement of the platen-carriage in letterfeed 'and return directions. rlhe flaring side walls 30 terminate, at their upper ends, in horizontal overhangs 31, the ends of which are turned upward, to form flanges 32. The left-hand overhang 31 is wider than the right, to serve as a platform for a covero ening device. and also to provide clearance fory the left-hand end of the carriage in its eXtreme'left-hand position, said carriage extending a little more to the left than to the right.l The side lining-pieces 13 extend upward from the flange 21 at the foot of the easing-body, along the flaring walls 30, vand thence, with reduced thickness on the lefthand overhang, across the overhangs, to the anges 32, where they are again turned up to the height of the flanges 32. Near their lower edges, and at their upper edges, the side lining-pieces 13 are secured to the sheeting of the casing-body by straps 19, in the manner hereinbefore descriloaaln Where the left side piece 13 is bent from a lateral flare to the horizontal overhang, it is held by a strap 33, carried on fingers 34, secured to the front and rear walls of the casing-body by two of the screws 18, which assist in holding the front and rear upper straps 19. lt will be noted (see Figure 1) that the strap 33 is bent longitudinally, as shown at 35, to the desired bend of the lining-piece, from an upward incline to a horizontal.

The upper part of the casing, due to the lateral flare of the side walls thereof to the overhangs, would ordinarily be wider than the platform 36 which may be the drop-leaf of a drop-desk; and, if an attempt were made to set the machine at its usual elevation on the drop-leaf,- such attempt would be frustrated by engagement of the overhangs 31 of the casing with the upper corners 37 of a depression 1n the top of the desk, at either side of the drop-leaf. In order to permit the easing to clear said upper corners of the desk, and, nevertheless, to be supported upon the platform 36located in a depression in the top of the desk, a bolster or standard 38 (see Figures 1 and 2) is interposed between the Harige 21, which forms the lower-'edge of he casing proper, and the casing-basepiece 9. This standard (see Figures 1 and 7) is comprised of two U-shaped sheet-metal members 40, having their ends set together at 41, lto form a rectangular piece. The members 40 are of channel-bar cross-section, partially split through on the lines 42, to permit folding at the corners; and the two members 40 are held together by plates 43, which overlap the joints 41, and which are riveted, as at 44', to the U-shaped sections.. Set within the channel-bars 40 are strips of sound-deadening lining-material 45, held to 'the bars'40 by straps 46 set upon bushings 47, staked or riveted into the members 40, and held to the The base-piece 39 comprises an inverted. 1

sheet-metal pan 49, and a sheet 50 of sounddeadening material set into the same, and held therein by a plate 51, which may be of wood. The plate 51 and the sheet 50 are held to the pan 49, and the pan 49 and standard 38 to the flange`21 of the casing proper, by means of screws 52, having their heads 53 set into recesses in the wooden plate 51, and passing thence upward through the plate 51, sheet V50. pan 49 and channel-pieces 40, finally to threadinto the fiange 21 ofthe casing. As shown in Figure 7, the liningpieces 45 of the channel-bars 40 of the standard are cut out at 54, to provide passages for iso ures 1, 2 and 6, is lshown as havin ings 57 'in the base-piece 39, through the bolster 38 and into the casing proper, where they thread at 57'L into bosses 58 on the main short feet of the machineare replaced by longer ones 59, so that the feet may extend down through the top of the pan e9, to rest upon the sound-deadening material 50, and thus have the' machine at an elevation vcorresponding With that of the casing. For locatingthe machine Within the casing, the pan i9 has circular, upwardly-protruding guards 60 (see Figures 2 and 8) turned out of the same, into which the feet 59 are placed. i l

if thecasing is to be used on a desk Without a depression the bolster 38 isnot necessary, and the casing-body may be supported directly upon the base-piece 39, as shown in Figure 6; that is to say, the ang'e 21 of the casing proper may be set directly upon the pan 42,- rlhe screws 52 will, in this instance,

. be shorter than the screws' 52'shown in the Figure 2 structure; and the feet 59 of the machine Will be off` the ordinary height. The 'wooden plate 510i the base-piece, Figpads or feet 61, of zielt or iother soundeadening material, secured thereto, by screws 62, to 'orevent transmission of sound vibrations from the case to its support.

ln order that the casing, or casing and standard, may be readily cleaned of dirt, from erasures and other sources, ihe basepieoe "39 has an opening 64 therethrough, which is Wor ially closed by a pan-like cover y (see MF 1 nes 2 and 8), having a peripheral ilange 56, by means ported on the inverted pan 19 of the base piece. For easy removal of the cover 65, the same is provided with handle 87, pivot/ed at 68 to bosses '69 on said cover, so that handle may normally be set down in Figure v2 position, but may be up for removal of the cover.

lv/ilfien the machine is .he position in the iocation or' its :reet c: er ists 7) or Mions "il (see Figure pro i These cushiens, which extend 'vertically along the. side Walls 72 of 'the opening in the casing, each rcomprise a rubber tubing 7 8, held in the fold or' a strip of felt fl; the ends of 'the -telt being brought together. and held to the casing by vertical straps 75, which, like the straps 18, are se`1 of which it is supu cured to bushings 76, staked or riveted to the sheeting 10 of the casing, by screws 77, which pass through the straps, through the edges of the felt 74, and thread into the tion. In lthe latter position, the'cushions,

by reason of their spring-setting, bear against the posts of the machine and eftectually close the joint between the machine and thecasing. The flexible mounting of the cushions permits the same to be swung rearward by the side plates of the keyboard extension, as the machine is set into the oasing or removedtherefrom; and, when the machine is in place, the dotted-line, Figure 12, setting of the upper portions of the cushions, effected by the posts of the machine, vvill, by reason oi the rubber tubing 73, cause the lower portions of the cushions to bear closely against the keyboard eXtension; to seal 'the goints alongside the latter, as Well as the joints between the posts and the casing above the keyboard extension.

To permit the machine to be readily placed Within, and removed from, the casing, the front Wall ofthe latter, above the position of the keyboard extension, is provided with a removable member (see Figures 2, i and 5). This removable member comprises a plate 78, adapted to extend from side to side of the Wider upper portion of the casing. The plate 7 8 carries astrip 79, of sound-deadening material. As shown in Figure 4, the strip 79 lextends along only that portion of the plate 78 which overlies the opening in the front Wall of the casing; and, when the machine is in place, this strip 79 abut-s the upper portion of the front of the machine-frame, closing the casing at this point against emission of sound. The plate 78 also carries :the cushion 80, which forms the lower Wall of the slot inthe casing, along 'which operating levers on the carriage of the machine move in the letter-feed and reniovements of the latter. These levers the ii espace lever 81, carriage-return arm and carriage-release lever 83. The 80 comprises a rubber tubing 84, ne 'fold ot' strip oit felt 85; the felt being brought together, at Lne plate .7 8 and the iining-strip n 87 extends along tlieinner face trip 79., and along the plate ds ot the lining-strip; and ng through the strap, the lining-mater; the edges of the felt 85, 'thread into 'the plate 7 8, to hold the parts together. fi bead 89, formed upon the upper edge oi plate 7 8, has its edge directed rearward, to serve as a front support for the cushion 8 0; and ,a plate 9U, held by `the n l J. ,r o, between screws 88, `between the edges of the felt 85 and the strap 87, has its upper edge odset rearward, at 91, above the lining-member 79, to serve as ay rear support for the cushion 80. The cushion.- 80 is, therefore, held, throughout its length, against rearward and forward displacement, in a seat formed in the upper edge vof the removable casingmember.

The. upper edgeof thel casing-body, at either side of the opening in the .front wall thereof, isoffset forward as shown at 92 in Figure 2; and the lower edge of the removable plate 78 is oliset rearward at the same angle as the edge 92, so as to lie flatly upon the latter. Studs 93 on the plate 78 (see Figures 2 and 5) are adapted to be registered with, andpassed through, openings 94 in the offset front edge of the casingbody. For locking the plate 78 to the casing-edge 92, there is, at each side thereof', a slideA 95, held to the innerL face of the edge piece 92 by headed pins 96, which pass through slots 97 in the slide. The plate 7 8,' near each end thereof, carries a pin 98, adapted to be passed through an opening 99 in the edging piece 92, and to project beyond4 the inner face of the slide 95; and which terminates in a head' 100. A shoulder 101 on the pin, together with the forward head of the pin, holds the same against forward and rearward displacement in the plate 78. The neck 102 of the pin, behind the plate 92, sets in a key-hole slot alongside a wedge 103 on the-slide 95. The opening 99 in the plate 92 is suiiciently large to permit the freevpassage therethroughof the inner head 100 of the pin 98 in positioning the. removable plate. At this time, the slide 95 will be at one side of the positlon thereof shown in Figure 5, so that the Wedge 103 is out of the path of or to the right of the head 100 of the pin as the plate 78 is set on the casing. The plate being in proper position on the casing, however, the slide is moved to its Figure 5 position, causing the wedge 103 to pass under the head 100 of the pin 98, thereby locking .the plate 78 to the casing. The wedge not only locks the plate 78 to the easing, but draws the plate tightl against the casing. The ends of the slots 9 by engagen'ient with the pins 96 may determine the throw of the slide 95 in either direction. A finger-piece 105 is provided on.

the slide, whereby to operate the same. After the machine has seen set in place, and while the casing-cover is still open, tne rei'novable piece 78 is set in place and the locking slides 95 operated by the handles 105A from withinthe casing.

'lhe lower front edge of the cover carries a cushion 106 which co-operates with the cushion 80 to close the slot along which the carriage-operating levers move. This cushion 106 may be in all respects like the cushion 80, and, like the latter, may be held in a seat formed by a bead 107 on the lower front edge of the cover and by a plate 108 like the plate 90;*the cushion and the plate 108 being' held to the vsheeting 11 of the cover by a strap 109 and nuts 110 on screws 110.

In order that the work-sheets on the typewriter-carriage 111 may not catch upon the lining 13 of the rear o f the cover, the cover: is provided with an inner facing or lining of smooth sheet-material 112. The sheet 112, at its 'upper forward edge, is secured by screws 113 to a U-shaped portion 114 of a bar 115, which extends longitudinally of the cover at the rear of an opening vor window 116 in the cover, through which `the printing on the platen 117 may be obv served., As shown in Figure 1, the bar 115 is continued down the sides of the opening 116; and, as shown in Figure 2, is continued along the front of the opening 116; serving as a frame or sash for a window-pane 118. The bar 115, along the several reaches thereof, is secured by rivets 119 to `the sheeting 11 of the cover. The pane, with lits edges bound .by a str iplor strips of-shock-absorbing material 120, is set against the U or channel shaped portions 114 of the bar, and against a peripheral flange or oifset 121 thereof. The liningieee 112 of the cover is extended slightly orward of its holding screws 113, as shown at 122 (Figure 2), to serve as a support for the rear'edge of the window-pane. At itsv sides, the windowpane vis held in its frame (see Figure 1), by metal strips 123, secured by screws 124 to the bar 115. At its front edge, the windowp'an'e is .supported by a rearward offset 125 of a bar 126, which may be one with the plate 108, forming part of the seat for the upper lcushion 106. The rear, side, and a portion of the front, reaches of the bar 115 have an upward offset or flange 127, which serves as a shade to intercept rays of light which would otherwise fall upon the glass at such angle as to be objectionably reflected into the eyes of the operator.

For opening, or assisting in the opening, of the cover, a spring-device is pro ided. This device comprises a coil-spring 128 (see Figure 9), enclosedl in a housing, consisting of two telescoping sleeves 129 and 130; lthe spring bearing, at one end, on a head 131 of the housing-member 129, and bearing, at its other end, against an adjustable head 132 in the housing-member 130. The housingmember 130 has, at its forward end, a head 133, fixed therein by pins 134; and, passing horizontally through the head 133 (see Figures 9 and 10), is a hinge-pin 135, set and threaded into a block 136, secured by screws 137 to the overhang 31 of the casing-body at the upper left-hand side of the latter. The housing as a whole may, therefore, have sheeting 11 of the cover, and at the rear of' the latter. The cover-lining-member 13 is slotted, as indicated at. 149, to receive the bracket-arm 146.

f The spring 128 is compressed when the cover` is closed, and, consequently, tends to :force rearward arm 138, arm 140 and bracket-arm 146, to swing the cover rearward around the hin e 12. The cover in swinging rearward an upward, in the open.- ing operation, causes the housing 129-130 to'swing upward on its pivot 135, as indicated in Figure 11.l The slot 145 is so directed as to permit of the pivotal movements lof the cover .andspring-housing; while providing for the direct/pressure of the roller 144 on the bracket-arm 146.- Thelower' rear end wall of the slot 145 serves as a vstop to determine the throw of the cover in the opening operation. v ,Y v

To serve as a brake or cushion, to prevent shocks to the cover, when the same is arrested in the opening operation, there is a leaf-spring 150, set inthe cut 149 in the lining-member, and secured to the bracket 147 by al( screw or rivet 151. At the end of the pm 143 is'aicollar 152 (Figures 3 and .11), against which the leaf-spring 150 is caused to bear with increasing pressure as the cover is opened. In other words, the upward movement'o the cover, in the open? ing operation,^brings the bellied portion of the leaf-'spring (see Figure 11) into breaking engagement with the collar 152. The collar 152 may be eccentric, land angularly adjustable on the pin 143, for adjustment of the tension'of thespring 150.

The tension `,of the spring 128 in the housing is adjusted by varying the position of the head 132 thereln. or this purpose, the head 132y is secured to a block 153, in threaded engagement with a stud 154. The stud 154 is held in the front head 133 of the housing, against longitudinal movement therein, by means of a collar 155, set into a recess in the stud, against the inner face of the head 133, and acollar 156, vsecured by a key 157 to the end of the stud, at the outer face of the head 133. The collar 156 has pin-holes 158 therein, to receive a pintool, by means of which the collar, and, consequently, the stud 154, may be turned, to move thel head 132 in one or the other direction. To prevent the head 132 from overriding the inner end of the stud 154, the latter has a headed screw 160 set into'the inner end thereof.

For locking the cover against the action adapted to engage the end. of the hook 162.

When the key or finger-piece 165 is pressed rearward, the head engages a lip 162n on the hook 162 to disengage the hook from the detent 163 and release the cover to the action of the spring 128.-

In order that the hook may not be injured by the typewritin machine, in the operation of removing t e latter from the casing, and may not be struck by the operlator, or otherwise bent or injured, it vis set in a housing. This .housing is in two sections, one section 17 0 being on the cover, and 'the other section 171, which forms a continuation of the section 170, being on the casing-body. As shown in Figure 2, the housing 170 is .a punchedepress piece in Athe form of a pan, set edge-on to the casingcover against bushings, staked or' riveted on the side wall of the cover; and anchored to such bushings by screws 172, which pass through the bottom ofthe pan and thread into the bushings. The 'lower side wall vof the pan has. an opening 173 therein, through which the hook 162 passes, and within which the hook may swing. A leaf-spring 174, secured at one end to the rear of the hook 162, and at its otherend bearing a ainst o nc of the bushings, acts to throw the ook forward into cover-locking position. The release-button-housing 171 is also made of a punching, and is' -secured to the fiange 32 of the body-portion of the casing by two flat-head screws 175 (Figure 3). The front and rear walls of the housing 170 are turned in at 17 0 and 170b to serve as stops to limit the throw of the hook.

To serve as stops or rests for the cover, on the forward part of the casing-body, are two pieces of fiber 1.76 (Figures `1 and 3), one at each sidel of the casing secured to the casing by screws 177. The edge of the casing-cover is recessed or cut away, at 178, to provide seats for the cover on the fiber-pieces 176; and these recesses are so shaped as to permit the cover to clear the `iberpieces 176 when swung up and down around its hinge 12. The stops 176 and seats 178 positively determine the. closed position of the cover, and eliminate the atrasos necessity for truing the opposing edges 'of the lining-strips at the sides of-the cover and casing-body.

Referring to the cover-openin device, it will be noted that the length of t e arm between the pivot 141 and the'rollerl 144 is greater than the length of the arm between the pivot 141 and the pin 139. words, the arm 140 serves to amplify the movement receivedv by it from the inember 138; and the cover-operating arm l146 receives a greater motion than does the arm 138.- To effecten ample movement of the cover, a relatively small movementof the spring-actuated arm 138 is', therefore, required. Since the spring 128 needs but slight expansion in the cover-openingv operation, the spring may be made of, a size and strength to perform its function effectively. Furthermore, the spacerequired for the expension of the housing, and` for the swing of the' housing on its pivot, may, by reason of the amplifyin arm 140, be less than would otherwise requiredr to -give the cover its full opening movement.l

As to the bolster 38 for elevating the casing for use of the same on a drop-leaf, it willbe notedA that the. same is placeable and removable, at will, betweenthelcasing-body and the base-piece l39;` on lwhich latter the machine rests,- `whether vthe standard be present or not. In other words, the bolster need 'not tbe' constructedy yto vsu port the weight of' themachine; and, int eabsence of 4necessity of provision for so support- 'ing -the machine -may be ofv cheaper and lighter construction than otherwise.` The *channel-bar; cross-section of the bolster 38 .givesr the'4 v'Same great rigidity against distortion.

vAs to the'f removable. member or plate 78, it is to be noted that the .construction and attachment thereof permit of the frjont of the casing, at the sides of the opening for the typewriter-keyboard, being continuous in one piece with the sheeting 10, forming the main body of the-.Casin Because of the' character of the piecesv 3, which extend along the sideL edges of the opening on the fixed front wall of the casing, such opening may be made of'ample .size to .permit of easy insertion of the machine down through the casing-body tothe base-piece; without, however, causing o en joints to be presented between .the keyoard extension and casing front wall, and without necessitating anyadjustment of parts to close the joints between the keyboard of the machine and the casing. v

Variations may be resortedtoY within the scope of the invention, and ortions of the improvements may be used w1thout others.

Having thus described my invention, I claim:y i y 1. The combination ofv a typewriting ma- In' other chine, a sound-deadening casing therefor having a body-portion `with lateral overhangs at the top thereof to provide space for movement of the carriage, means supporting said machine vand casing upon a -desk haviner aplatform depressed below thek top of the desk', said casing having a removable base-piece and 'a bolsterl insertable between the base-piece and the casing-body to elevate the latter to canse the llateral extensions .to clear the corners ofthe desk at the top of the depression, and means to elevate the machine according to the elevation of the casing-body.

2. The combination with a sound-denderling casing for. a-typewriting machinehav ing an overhanging body-portion to provide space for lmovement therein of thetypeji writer-carriage, and a'r'emovable base-piece, of a bolster insertable, at will,cbetwee'n the base-piece and the body-portion of the casing to elevate the lattelgto cause the overhangs thereof to clear the corners of a depression in the top of a desk when the basepiece isset uponiaplatform inthe depression.

I B. The combinationwith a sound-deadening casing for a typewritingmachine, having an overhanging body-portion to provide space for movement therein ofthe typewriter-carriage, Iand -a base-'piece [on which the machine is adapted to be set, of a bolster between'the base-piece and ther casing-body to elevate the latter, to cause the foverhangs thereof to clear the corners of a depression vin the top lof the deskwhen'the base-piece is setupon a platform-in the depression.I

4. Theccombination with a, 'sound-deadening' casing for a typewritng-nachine, having an overhanging .body-portion to provide space for"movement. therein of the typewriter-carriage, and a base-piece on which the machine is adaptedt be set, of a bolster between theI base-piece andthe casing-body to elevate the latter, to cause the overliangs thereof to clear lthe corners of a depression in the top of a desk when the base-piece is set upon 'a platform in the-depression; said bolster being hollow and of channel-bar. cross-section. 1

5. The combination with a sound-deadening casingfor a typewriting machine, having an overhanging body-portion to pro-` vide space for movement thereof in the typewriter-carriage, and a base-piece'on w ich the machine is adapted to be set, of a bolster between the base-piece and the casing-body. to elevate the latter, to cause the overhangs thereof to clear the corners of a', depression in the top of a desk when the base-piece is set u on a platformv in the depression; said bester being composed of two U- shaped sections, set end to end to form a ec'tangle, and securedl together by straps crossing the joints therein.

als

iso

G. The combination with a sound-deadening casing for a typewriting machine, having an overhanging body-portion to provide space for movement therein of the typewriter-carriage, and a base-piece on which the machine isA adapted to be set. of a bolster between the base-piece and the casingbody to elevate the latter, to cause the overhangs thereof to clear the corners of a depression in the top of a desk when thebasepiece is set upon a platform in the depres: sion, saidbolster having a lining of sounddeadening material.

7. The combination with a sound-deadeningcasing for a typewritingI machine, having an overhanging body-portion to provide space for movement therein of the typewriter-carriage, and a base-piece onwhich the vmachine is adapted to be set, of a bolster between the base-piece and the casingbody to elevate the latter, to cause the overhangs thereof'to clear the corners of a depression in the top of,l a desk when the basepiece is set upon a pfatform in the depresf sion; `said bolster'being of channel-bar crosssection, having a strip or strips of lining-material set in the channel thereof. ,p

8. The combination 'with a sound-deadeni'ng casing f or a typewriting machine, having an overhanging l body-portion to provide space for movement therein of the typewriter-carriage, and a base-piece on which the machine is'ada'pted to be set, of a bolster between the base-piece and the casing-body to elevate the latter, to cause the overhangs thereof to clear the corners of a depression in the top of a desk when the base-piece is set upon a platform in the depression; said bolster being of channel-bar cross-section, having a strip 'or' strips of lining-material set in the channel thereof; bushings staked or riveted to the channel-pieces,l and ;eX- tending through the lining-material,straps laid lengthwise of the'cliannel-pieces, on the bushings, and screws or pins passing through the straps and into the bushings, to Khold the straps and lining-material in place.

9. The combination with a sound-deadening casing for a typewriting machine, having an ',overhanging body-portion to provide space for movement therein of the typewriter-carriage, and a base-piece on which the machine isvadapted to be set, of a bolster between the base-piece and the casing-body to elevate the latter, to cause the overhangs thereof to clear the corners-of a depression in the top of a desk when the base-piece is set upon a platform in the depression; said bolster being of channel-bar cross-section, having holes in the Wings thereof; and screws!` or bolts .passing through the basepiece and through the holes in the bolster for securing the base-piece and the bolster to the casing proper.

10. The combination with a typewriting `ing-body.

12. The combination with a typewriting machine, of a sound-deadening casing therefor, and a single means. having dual functions to both elevatethe casing and at the same time maintain a sound-proof seal between said casing and its supporting means.

13. The combination with a typewriting machine, of a sound-deadening casing therefor, means normally to support the casing, and means selectively to elevate the casing to' different heights relatively to the support, said last-named means lcomprising plural members, one of which elevate the casing to a predetermined height and at the same time maintains a sound-proof seal between said normal supporting means and the casing, and the other of which co-operates with said lirst-named member to further elevate said casing, and at'the same time maintain a sound-proof seal between the casing and said tiret-named member.

14. The combination with a typewriting machine, of a sound-deadening casing therefor, havinga portion of its body of greater over-all dimension than that between the side Walls adjacent a platform in the depression of a desk, and means to elevate said casing to permit it to be supported by said platform, sov that said portion of the casing clears the corners of the depression, comprising a base-piece and a supplemental member co-operating with each other and with both the casing and the platform to deaden soundsfrom the typewriting machine and'prevent emission of sounds toward the direction of the platform.v

l5. The combination of a typewriting machine,-. a sound-deadening casing therefor having abody-portion with lateral overhangs at the top thereof to provide space for movement of the carriage, means supporting said machine and casing upon adesk having a platform depressed below the top of the desk, said casing having avremovable base-piece and a bolster insertable between the base-piece and the casing-body to elevate the latter to cause the lateral eXtensions to clear the corners of the desk at the top of the depression, and replaceable feet under the machine frame to elevate the machine accordingto the elevation of the cas- ALFRED e. F. KURowsKI. 

